Sugarcane whole stem leaf stripping mechanism

Abstract

The utility model discloses a whole sugarcane stem leaf stripping mechanism which comprises a leaf stripping channel, a leaf stripping mechanism and a leaf stripping mechanism. The two leaf peeling roller sets are mounted in the leaf peeling channel and are distributed at intervals in the front-back direction; each leaf peeling roller group comprises two leaf peeling rollers which are distributed in parallel up and down, and each leaf peeling roller comprises a plurality of leaf peeling plates; the clamping and conveying roller group is mounted in the leaf stripping channel and is positioned behind the rear leaf stripping roller group; each clamping and conveying roller group comprises two clamping and conveying rollers which are distributed in parallel up and down, and the rotating speed of the clamping and conveying rollers is smaller than that of the leaf peeling rollers; each clamping conveying roller comprises a plurality of clamping plates; the centrifugal fan is mounted at the rear upper part of the leaf stripping channel and is positioned behind the clamping and conveying roller group; and a power device. By means of the leaf stripping mechanism, the impurity removal effect can be improved, the impurity rate of sugarcane stems can be reduced, the problem that sugarcane leaves block an outlet can be solved, frequent manual cleaning is not needed, it is guaranteed that the leaf stripping mechanism can work continuously, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sugarcane harvesting equipment, in particular to a sugarcane whole-stalk leaf stripping mechanism. Background Technique

[0002] At present, there are mainly two modes of sugarcane harvesting in China: manual whole-stalk harvesting and machine cutting harvesting. For manual sugarcane cutting, the incision loss is very low. For manual whole-stalk leaf stripping, the impurity content is very small. Manual harvesting is most popular with sugar mills. However, with the aging of the population and the increase in labor prices, it is an irreversible trend for the sugarcane industry to replace manual harvesting with machine harvesting. The integrated sugarcane cutting and impurity removing combined harvester is the current mainstream sugarcane harvesting machine. However, the harvesting loss rate and impurity content of such machines remain high. The average field harvesting loss is about 8% - 10%; due to the loss of sugar water from the incision and the comminution loss caused by poor harvesting of lodged sugarcane, the impurity content is as high as 10 - 15%; for sugarcane stumps and sediment, the comprehensive loss rate is greater than 15%. Moreover, there are many incisions on the sugarcane, and the mildew of the incisions will affect the production of the sugar mill. Therefore, the sugarcane needs to be transported to the factory for pressing and sugar making within 24 hours after cutting, which increases the scheduling difficulty of the sugar mill.

[0003] In order to avoid the problems occurring in the above-mentioned machine cutting harvesting, at present, sugarcane whole-stalk harvesters have emerged, which are mainly divided into two-step modes of sugarcane whole-stalk type laying or manual cutting, self-propelled sugarcane whole-stalk leaf stripping and transportation in the field. Among them, the self-propelled sugarcane whole-stalk leaf stripping and transporting machine realizes sugarcane whole-stalk leaf stripping and transportation, without the influence of incision mildew like the cutting type machine harvesting, and the impurity removing effect is closest to manual harvesting. However, the leaf stripping and impurity removing effect of the existing leaf stripping mechanism of the sugarcane whole-stalk harvester is poor, and the impurity content is high; in the leaf stripping channel of the sugarcane leaf stripping machine, the sugarcane leaves are separated by the friction of the leaf stripping rollers, and the sugarcane leaves fall off by gravity. A pair of comb-shaped roller wheels is installed at the outlet of the sugarcane leaf stripping machine, or a comb-shaped chain is suspended. The sugarcane leaves and weeds are blocked passively by the comb-shaped roller wheels or the comb-shaped chain, and the sugarcane stalks can fly out through the comb at the outlet. It can only passively and limitedly block some sugarcane leaves, resulting in frequent congestion of sugarcane leaves at the outlet of the leaf stripping mechanism, which requires manual cleaning in time. The leaf stripping mechanism can only operate intermittently, affecting the operation efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sugarcane whole-stalk leaf stripping mechanism, so as to overcome the disadvantages that the existing leaf stripping mechanism has poor leaf stripping and impurity removing effect, high impurity content, and frequent congestion of sugarcane leaves at the outlet of the leaf stripping mechanism, which requires manual cleaning in time, resulting in the leaf stripping mechanism can only operate intermittently and affecting the operation efficiency.

[0005] To achieve the above object, the utility model provides a sugarcane whole-stalk leaf stripping mechanism, including: a leaf stripping channel which is arranged with front and rear guiding; at least two leaf stripping roller groups, and the two leaf stripping roller groups are installed in the leaf stripping channel in a rotatable manner and are distributed at intervals in the front and rear directions; each leaf stripping roller group includes two leaf stripping rollers which are distributed parallel to each other up and down, and the two leaf stripping rollers rotate relatively inward and backward, and each leaf stripping roller includes a plurality of leaf stripping plates which are evenly distributed along the circumferential direction of the leaf stripping roller; a clamping and conveying roller group which is installed in the leaf stripping channel in a rotatable manner and is located behind the rear leaf stripping roller group; each clamping and conveying roller group includes two clamping and conveying rollers which are distributed parallel to each other up and down, and the two clamping and conveying rollers rotate relatively inward and backward, and the rotation speed of the clamping and conveying rollers is less than the rotation speed of the leaf stripping rollers; each clamping and conveying roller includes a plurality of clamping plates which are evenly distributed along the circumferential direction of the clamping and conveying roller; a centrifugal fan which is installed above the rear of the leaf stripping channel and is located behind the clamping and conveying roller group and is used for separating the sugarcane leaves and the tail tips mixed on the sugarcane; and a power device which is used for driving the clamping and conveying roller group and each leaf stripping roller group to rotate.

[0006] Preferably, in the above technical solution, on each leaf stripping roller, the leaf stripping plates include a plurality of longitudinal leaf stripping plates and a plurality of transverse leaf stripping plates, the plurality of longitudinal leaf stripping plates and the plurality of transverse leaf stripping plates are both evenly distributed along the circumferential direction of the leaf stripping roller, and one transverse leaf stripping plate is arranged between two adjacent longitudinal leaf stripping plates; wherein, each longitudinal leaf stripping plate is inclined from the inside to the outside in the opposite direction of the rotation direction of the leaf stripping roller, and each transverse leaf stripping plate is arranged perpendicular to the axis of the leaf stripping roller.

[0007] Preferably, in the above technical solution, the transverse leaf stripping plate is a leaf stripping rubber plate, and the longitudinal leaf stripping plate is a leaf stripping rubber plate, a leaf stripping rubber rod or a leaf stripping torsion spring.

[0008] Preferably, in the above technical solution, the clamping plate is a clamping rubber tube or a clamping rubber plate.

[0009] Preferably, in the above technical solution, the bottom surface of the leaf stripping channel is an open structure, and the centrifugal fan is in a blowing mode from top to bottom.

[0010] Preferably, in the above technical solution, the power device includes a first gear transmission mechanism, a second gear transmission mechanism, and a chain transmission mechanism. Between the two stripping rollers of each stripping roller group, they are connected through the first gear transmission mechanism. Between the two clamping and conveying rollers of the clamping and conveying roller group, they are connected through the second gear transmission mechanism, and the diameter of the gear of the second gear transmission mechanism is larger than the diameter of the gear of the first gear transmission mechanism; between the gears located below in two adjacent first gear transmission mechanisms, and between the gear located below in the second gear transmission mechanism and the gear located below in the adjacent first gear transmission mechanism, they are all connected through the chain transmission mechanism.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. By adopting the stripping mechanism of the utility model, the rotation speed of the clamping and conveying roller is less than that of the stripping roller, which can ensure stable differential speed, reliable leaf stripping, and the structure of the clamping and conveying roller can perform the operation of cutting off the tail of the cane tip; at the rear of the stripping channel, a centrifugal fan is used to blow away impurities such as cane leaves and cane tips on the cane stalk, which can improve the impurity removal effect and reduce the impurity content rate of the cane stalk; using the centrifugal fan to blow the cane leaves instead of the traditional grid type for intercepting the cane leaves, without the contact interception of the grid, can solve the problem of cane leaf congestion at the outlet, without the need for frequent manual cleaning, ensuring that the stripping mechanism can work continuously and improving work efficiency.

[0013] 2. The stripping plate of the utility model includes a plurality of longitudinal stripping plates and a plurality of transverse stripping plates. Each longitudinal stripping plate is inclined from the inside to the outside in the opposite direction of the rotation direction of the stripping roller, and each transverse stripping plate is perpendicular to the axis of the stripping roller, which can further improve the stripping and impurity removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of the sugarcane whole-stalk leaf stripping mechanism according to the utility model.

[0015] Main reference numeral descriptions:

[0016] 1 - stripping channel, 11 - stripping roller, 12 - longitudinal stripping plate, 13 - transverse stripping plate, 14 - clamping and conveying roller, 15 - clamping rubber tube, 16 - centrifugal fan, 17 - fan blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following combines the drawings to describe the specific embodiments of the utility model in detail, but it should be understood that the protection scope of the utility model is not limited by the specific embodiments.

[0018] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or variations thereof such as "comprises" or "comprising" shall be understood to include the stated element or component and not to exclude other elements or other components.

[0019] Figure 1 Fig. shows a schematic structural view of a sugarcane whole-stalk leaf stripping mechanism according to a preferred embodiment of the present utility model. The leaf stripping mechanism includes a leaf stripping channel 1, at least two leaf stripping roller groups, a clamping and conveying roller group, a centrifugal fan 16, and a power device.

[0020] Reference Figure 1 , the leaf stripping channel 1 is arranged with front and rear guiding for stripping leaves from sugarcane and conveying it backward. Two leaf stripping roller groups are rotatably installed in the leaf stripping channel 1 and are spaced apart front and rear to convey and strip leaves from sugarcane. Each leaf stripping roller group includes two leaf stripping rollers 11 arranged parallel up and down, and the axis of each leaf stripping roller 11 is distributed in the left-right direction. The two leaf stripping rollers 11 rotate relatively inward and backward to convey sugarcane backward. Each leaf stripping roller 11 includes a plurality of leaf stripping plates evenly distributed along the circumferential direction of the leaf stripping roller 11 for stripping leaves from sugarcane. The clamping and conveying roller group is rotatably installed in the leaf stripping channel 1 and is located behind the rear leaf stripping roller group for clamping sugarcane and conveying it backward. Each clamping and conveying roller group includes two clamping and conveying rollers 14 arranged parallel up and down, and the axis of each clamping and conveying roller 14 is distributed in the left-right direction. The two clamping and conveying rollers 14 rotate relatively inward and backward to convey sugarcane backward; and the rotational speed of the clamping and conveying rollers 14 is less than that of the leaf stripping rollers 11, which can ensure stable differential speed and reliable leaf stripping. Each clamping and conveying roller 14 includes a plurality of clamping plates evenly distributed along the circumferential direction of the clamping and conveying roller 14 for clamping, conveying, and tail-cutting operations on sugarcane. The centrifugal fan 16 is installed above the rear of the leaf stripping channel 1 and is located behind the clamping and conveying roller group for separating the sugarcane leaves and tails mixed on the sugarcane. The power device is used to drive the clamping and conveying roller group and each leaf stripping roller group to rotate. By using the leaf stripping mechanism of the present utility model, the centrifugal fan 16 at the rear of the leaf stripping channel 1 blows away impurities such as sugarcane leaves and tails on the sugarcane stalk, which can improve the impurity removal effect and reduce the impurity content rate of the sugarcane stalk; using the centrifugal fan 16 to blow the sugarcane leaves instead of the traditional grille-type interception of sugarcane leaves mode, without the contact interception of the grille, the problem of sugarcane leaves congesting the outlet can be solved, and there is no need for manual cleaning frequently, ensuring that the leaf stripping mechanism can work continuously and improving work efficiency.

[0021] Reference Figure 1, on each leaf stripping roller 11, the leaf stripping plates can be arranged perpendicular to the axis of the leaf stripping roller 11, can be inclined, or can be a combination of vertical and inclined settings, etc. Preferably, on each leaf stripping roller 11, the leaf stripping plates include a plurality of longitudinal leaf stripping plates 12 and a plurality of transverse leaf stripping plates 13. The plurality of longitudinal leaf stripping plates 12 and the plurality of transverse leaf stripping plates 13 are both evenly distributed along the circumferential direction of the leaf stripping roller 11, and one transverse leaf stripping plate 13 is provided between two adjacent longitudinal leaf stripping plates 12. Among them, each longitudinal leaf stripping plate 12 is inclined from the inside to the outside in the opposite direction of the rotation direction of the leaf stripping roller 11, and each transverse leaf stripping plate 13 is arranged perpendicular to the axis of the leaf stripping roller 11. The structure with vertical and inclined intervals can strip the sugarcane at multiple points and in multiple directions, improving the leaf stripping and impurity removal effect of the leaf stripping plates. Further preferably, the transverse leaf stripping plates 13 are leaf stripping rubber plates, and the longitudinal leaf stripping plates 12 are leaf stripping rubber plates, leaf stripping rubber rods or leaf stripping torsion springs. The structure is diversified and can be selected according to requirements.

[0022] Reference Figure 1 , preferably, the clamping plate is a clamping rubber tube 15 or a clamping rubber plate. When the clamping plate adopts the structure of a clamping rubber plate, it has the function of cutting off the tail tip of the sugarcane while clamping and conveying.

[0023] Reference Figure 1 , the centrifugal fan 16 can function as blowing or exhausting. Preferably, the bottom surface of the leaf stripping channel 1 is an open structure. The centrifugal fan 16 is provided with a fan blade 17, and the centrifugal fan 16 is in a blowing mode from top to bottom, blowing away the sugarcane leaves and tail tips mixed in the sugarcane stalks, and the sugarcane stalks are sprayed and delivered by the clamping and conveying roller group to the sugarcane collection and self-unloading carriage at the rear.

[0024] Reference Figure 1 , preferably, the power device includes a first gear transmission mechanism, a second gear transmission mechanism and a chain transmission mechanism. The two leaf stripping rollers 11 of each leaf stripping roller group are connected by the first gear transmission mechanism, and the two clamping and conveying rollers 14 of the clamping and conveying roller group are connected by the second gear transmission mechanism. The diameter of the gear of the second gear transmission mechanism is larger than the diameter of the gear of the first gear transmission mechanism. The gears located below in two adjacent first gear transmission mechanisms, and between the gear located below in the second gear transmission mechanism and the gear located below in the adjacent first gear transmission mechanism are all connected by a chain transmission mechanism; the chain transmission mechanism includes two sprockets and a chain. One of the leaf stripping rollers 11 located below in the first gear transmission mechanism is connected to an external power to drive the leaf stripping mechanism to rotate and strip leaves.

[0025] The leaf stripping mechanism of the present utility model adopts the structure of a centrifugal fan 16 and improves the structures of the leaf stripping rollers 11 and the clamping and conveying rollers 14. It can not only improve the impurity removal effect and reduce the impurity content rate of sugarcane stalks, but also solve the problem of leaf congestion at the outlet, eliminating the need for frequent manual cleaning, ensuring the continuous operation of the leaf stripping mechanism, and improving work efficiency.

[0026] The foregoing description of specific exemplary embodiments of the present utility model is for purposes of illustration and exemplification. These descriptions are not intended to limit the present utility model to the precise forms disclosed, and obviously, many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present utility model and its practical applications, enabling those skilled in the art to implement and utilize the various different exemplary embodiments of the present utility model, as well as various different selections and changes. The scope of the present utility model is intended to be defined by the claims and their equivalents.

Claims

1. A sugarcane whole-stalk leaf stripping mechanism, characterized in that, Comprising: A leaf stripping channel with front and rear guiding settings; At least two leaf stripping roller groups, the two leaf stripping roller groups are rotatably installed in the leaf stripping channel and are distributed at intervals front and back; each leaf stripping roller group includes two leaf stripping rollers distributed parallel to each other up and down, the two leaf stripping rollers rotate relatively inwards and backwards, and each leaf stripping roller includes a plurality of leaf stripping plates evenly distributed along the circumferential direction of the leaf stripping roller; A clamping and conveying roller group, which is rotatably installed in the leaf stripping channel and is located behind the rear leaf stripping roller group; each clamping and conveying roller group includes two clamping and conveying rollers distributed parallel to each other up and down, the two clamping and conveying rollers rotate relatively inwards and backwards, and the rotation speed of the clamping and conveying rollers is less than the rotation speed of the leaf stripping rollers; each clamping and conveying roller includes a plurality of clamping plates evenly distributed along the circumferential direction of the clamping and conveying roller; A centrifugal fan, which is installed above the rear of the leaf stripping channel and is located behind the clamping and conveying roller group, for separating the sugarcane leaves and tails mixed on the sugarcane; And A power device, which is used to drive the clamping and conveying roller group and each leaf stripping roller group to rotate.

2. The sugarcane whole-stalk leaf stripping mechanism according to claim 1, wherein On each leaf stripping roller, the leaf stripping plates include a plurality of longitudinal leaf stripping plates and a plurality of transverse leaf stripping plates, the plurality of longitudinal leaf stripping plates and the plurality of transverse leaf stripping plates are both evenly distributed along the circumferential direction of the leaf stripping roller, and one transverse leaf stripping plate is provided between two adjacent longitudinal leaf stripping plates; wherein, each longitudinal leaf stripping plate is inclined from the inside to the outside in the opposite direction of the rotation direction of the leaf stripping roller, and each transverse leaf stripping plate is perpendicular to the axis of the leaf stripping roller.

3. The sugarcane whole-stalk leaf stripping mechanism according to claim 2, wherein, The transverse leaf stripping plate is a leaf stripping rubber plate, and the longitudinal leaf stripping plate is a leaf stripping rubber plate, a leaf stripping rubber rod or a leaf stripping torsion spring.

4. The sugarcane whole-stalk leaf stripping mechanism according to claim 1, characterized in that, The clamping plate is a clamping rubber tube or a clamping rubber plate.

5. The sugarcane whole-stalk leaf stripping mechanism according to claim 1, characterized in that, The bottom surface of the leaf stripping channel is an open structure, and the centrifugal fan is in a blowing mode from top to bottom.

6. The sugarcane whole-stalk leaf stripping mechanism according to claim 1, wherein, The power device includes a first gear transmission mechanism, a second gear transmission mechanism and a chain transmission mechanism. The two leaf stripping rollers of each leaf stripping roller group are connected by the first gear transmission mechanism, the two clamping and conveying rollers of the clamping and conveying roller group are connected by the second gear transmission mechanism, and the diameter of the gear of the second gear transmission mechanism is larger than the diameter of the gear of the first gear transmission mechanism; the gears located below in two adjacent first gear transmission mechanisms, and between the gear located below in the second gear transmission mechanism and the gear located below in the adjacent first gear transmission mechanism are all connected by a chain transmission mechanism.

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